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数字图像处理编程入门 书和书的 源代码
1) windows位图bitmap(即bmp文件)的结构和调色版的概念;
(2) 图象的平移、旋转、镜象变换、转置变换、放缩;
(3) 图象的平滑(去噪声)、锐化;
(4) 图象的半影调、抖动技术;
(5) 图象的直方图修正、彩色变换;
(6) 图象的腐蚀和膨胀效果、细化算法、骨架的提取;
(7) 图象的边沿检测与抽取、hough变换、轮廓跟踪;
(8) 图象的检测、模板匹配;
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This package contains Matlab and C-code for denoisinig greyscale images
using spatially adaptive ProbShrink
implemented with a NON-DECIMATED wavelet transform and under
the generalized Laplacian marginal prior.
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This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN -
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美国NASA首席科学一家黄鄂发明的希尔伯特-黄变换,在建筑,医学,生物等方面的数据分析有很强的应用-U.S. NASA' s chief scientific invention of a yellow E-Hilbert- Huang Transform, in architecture, medicine, biology, etc. have a strong application of data analysis
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S变换的MATLAB实现程序。写的很具体。-S transform
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求解任意阶魔方的变换的matlab程序源代码。-Solving the Rubik' s cube of any order transform matlab program source code.
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MATLAB2维小波变换经典程序,MATLAB的一些例子-Some examples MATLAB2 dimensional wavelet transform classic program, MATLAB' s
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此程序采用matlab编程,可以进行S变换做时频分析,还可用于测井曲线的时频分析-When this procedure using matlab programming, frequency analysis can be done when the S transform, it can be used to log-frequency analysis
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包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度,在MATLAB中求图像纹理特征,基于小波变换的数字水印算法matlab代码。- Including Deng s correlation, absolute correlation, correlation of slope, improved absolute correlation, In the MATLAB image texture feature, Based on wavelet transform digital water
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基于小波变换的数字水印算法matlab代码,关于神经网络控制,D-S证据理论数据融合。- Based on wavelet transform digital watermarking algorithm matlab code, On neural network control, D-S evidence theory data fusion.
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S Transform matlab code for time-frequency analysis
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基于matlab语言的s变换,为信号分析提供参考依据。(S transform based on matlab language provides reference for signal analysis.)
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S 变换的matlab程序,进行时频分析的有力工具,也可以作为其他信号处理的工具(Stransform for signal)
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简单的s变换matlab计算程序,用于初学者简单学习s变换(Simple S transform matlab computing program for beginners to learn S transform)
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基于S变换的电能质量检测,可以实现电压暂升暂降中断等的扰动检测(The power quality detection based on S transform can detect disturbances such as voltage sags, interruptions and so on.)
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小波变换,对图像二维信号进行3层小波分解。
本题二维图像采用MATLAB自带的图片,实现图片多层小波分解的函数是:
[C,S]=wavedec2(X,N,’wname’) , 即使用给定小波‘wname’对二维信号X进行N层小波分解。本题使用’bior3.7’小波进行分析。(wavelet transform)
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(1)心电信号预处理
心电信号是一种低频且含有众多噪声干扰的信号。针对心电信号存在的
噪声干扰问题,本文采用了平稳小波变换结合双变量阈值的方法对其进行去 噪处理。通过对心电信号进行八层平稳小波变换,得到不同的小波系数,采
用双变量阈值函数表达式对其进行处理得到新的小波系数,最后进行逆平稳
小波变换实现小波重构,完成心电信号去噪。Matlab 仿真结果显示,本文算
法的准确率较高,信噪比达到 84.5934dB。 (2)心电信号波形识别
反映心电信号的特征部分往往是信号的突变点,因此需
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